Last update on January 26, 2023 // Source: Amazon API
Rifle Scope Product Details
Hammers Compact Short Rifle Scope 3-9x42GDT w/Extended Eye Relief, Rings, ARD Anti-Reflection Filter, Flip Open Lens Caps
A compact rifle scope perfect for use with military style modern sports rifles or small caliber hunting rifles. It has a 4inch eye relief that allows further forward mounting on the flat top receiver for easier acquisition of a moving target. – Sniper style MIL dot Red/Blue illuminated reticle that is adjustable to 5 levels of lighting intensity for each color. – .223 caliber BDC (bullet-drop-compensator) dial on top the elevation adjustment knob. – screw-on ARD (anti-reflection) adapter to reduce glare – 1″ one-piece body for better strength and more precise alignment – field of view at 100 yds: 37′ at 3x; 12.5′ at 9x – eye relief: 4inch – overall length: 9 1/2″ – scope comes with one pair of Weaver scope rings. Rings have 30mm center height (line of sight) that is perfect for flat top AR rifles. Fits Weaver/Picatinny. – use one CR2032 button cell battery (included) – flip-open lens caps.
Rifle Scope Product Features
A compact scope of variable 3x-9x power and good field of view
Extended 4 inch eye relief great for forward mounting on flat top
Includes screw-on ARD anti-reflection device lens filter and weaver rings of optimal height for use on flat top
Red/Blue Two Color Illuminated Mil Dot Reticle
1 inch main tube with finger adjustable turret screws
About the Hammers Brand
Hammers is a premium supplier for rifle scopes, optics, mounts, and other add-ons used for firearms like rifles and long guns. They create and build their scopes and related products by using materials which are durable and long lasting. This includes the Hammers Compact Short Rifle Scope 3-9x42GDT w/Extended Eye Relief, Rings, ARD Anti-Reflection Filter, Flip Open Lens Caps by Hammers. For more shooting items, visit their site.
Rifle scopes enable you to specifically align a rifle at different targets by lining up your eye with the target over a range. They do this through zoom by employing a series of lenses inside the scope. The scope’s positioning can be dialed in for the consideration of numerous environmental considerations like wind speed and elevation decreases to account for bullet drop.
The scope’s function is to understand precisely where the bullet will land based upon the sight picture you are viewing with the scope as you line up the scope’s crosshair or reticle with the intended target. Most modern rifle scopes and optics have about 11 parts which are located inside and outside of the scope body. These scope parts consist of the rifle scope’s body, lenses, adjustment turrets or dials, focus rings, and other parts. Learn about the eleven parts of glass.
Rifle Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The kind of focal plane a scope has decides where the reticle or crosshair lies in relation to the optic’s zoom. It literally suggests the reticle is located behind or in front of the magnifying lens of the optic. Considering the most ideal style of rifle scope depends on what sort of hunting or shooting you anticipate doing.
First Focal Plane Scopes
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These types of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting situations where computations are minor
- Experienced shooters who know their target “hold over” as well as “lead” relationships for their firearms
- Shooters who do not mind the reticle is enlarged and requires more visual eyesight room than a SFP reticle
About Second Focal Plane Glass
Second focal plane glass (SFP) feature the reticle behind the magnifying lens. This induces the reticle to stay at the same overall size in relation to the volume of zoom being used. The end result is that the reticle dimensions change based upon the zoom applied to shoot over longer distances due to the fact that the reticle measurements represent different increments which can vary with the magnification level. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement. These particular styles of scopes are beneficial for:
- Long distance styles of shooting where shooters have more time to make ballistic calculations
- Shooting where most of the shots take place within much shorter proximities and ranges
- Shooters who like a clearer optic picture without space taken up by the larger size FFP reticle
The amount of scope zoom you need depends upon the style of shooting you intend to do. Practically every kind of rifle glass delivers some level of magnification. The volume of zoom a scope delivers is identified by the dimension, density, and curves of the lens glass inside of the rifle optic. The magnification of the optic is the “power” of the glass. This means what the shooter is checking out through the scope is amplified times the power factor of what can normally be seen by human eyes.
Info About Single Power Lens Scopes
A single power rifle optic or scope uses a zoom number designator like 4×32. This suggests the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of scope can not change given that it is a fixed power scope.
Variable Power Lens Rifle Glass
Variable power rifle scopes can be adjusted between magnification power levels. It will list the magnification degree in a configuration such as 2-10×32. These numbers imply the zoom of the scope could be adjusted between 2x and 10x power. This also incorporates the power levels in-between 2 and 10. The power manipulation is accomplished by employing the power ring component of the scope near the back of the scope by the eye bell piece.
Power Levels and Range Correlations
Here are some recommended scope power levels and the ranges where they can be successfully used. High power glass will not be as efficient as lower magnification level scopes because too much magnification can be a negative aspect depending on your shooting distance. The same idea goes for longer ranges where the shooter needs to have enough power to see where to properly aim the rifle at the target.
Rifle Optic Lens Covering
All contemporary rifle scope and optic lenses are covered in special coatings. There are different types and qualities of lens coatings. Lens finishing can be a crucial element of a rifle when thinking about luxury rifle optics and scope systems. The lenses are among the most key components of the scope because they are what your eye looks through while sighting a rifle in on the point of impact. The covering on the lenses protects the lens surface and helps with anti glare capabilities from refracted natural light and color exposure.
Info on Glass Lens Coatings – HD Versus ED
Some scope producers likewise use “HD” or high-definition lens coatings which use various techniques, polarizations, elements, and chemicals to draw out various colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Single Finishing Versus Multi-Coating for Rifle Optics
Various optic lenses can also have different finishes applied to them. All lenses normally have at least some kind of treatment or finishing applied to them prior to being used in a rifle scope or optic. This is because the lens isn’t just a raw piece of glass. It becomes part of the finely tuned optic. It requires a coating to be applied to it so that the lens will be optimally usable in lots of kinds of environments, degrees of sunlight (full VS shade), and other shooting conditions.
Single layered lenses have a treatment applied to them which is typically a protective and enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while lowering glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope manufacturer and how much you spent paying for it. The scope’s maker and cost are indications of the lens quality.
Some scope makers likewise make it a point to specify if their optic lenses are layered or “multi” coated. This implies the lens has had multiple treatments applied to them. If a lens receives numerous treatments, it can indicate that a maker is taking several actions to combat different natural elements like an anti-glare covering, a scratch resistant anti-abrasion finishing, followed by a hydrophilic covering. This also doesn’t always indicate the multi-coated lens is better than a single covered lens. Being “better” is dependent on the manufacturer’s lens treatment solutions and the quality of materials used in building the rifle glass.
Anti-water Coating for Rifle Optics
Water on a lens doesn’t assist with preserving a clear sight picture through a scope at all. Many top of the line and high-end scope makers will coat their lenses with a hydrophobic or hydrophilic finish.
Rifle Optic Mounting Options
Installing options for scopes can be found in a couple of options. There are the standard scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also normally are made in quick release variations which use manual levers which enable rifle operators to quickly install and remove the scope.
Rifle Scope Mounts with Hex Key Rings
Basic, clamp style mounting scope rings use hex head screws to position to the flattop style Picatinny scope mount rails on the tops of rifles. These styles of scope mounts use double independent rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are developed for long distance precision shooting. This type of scope mount is great for rifle systems which require a durable, unfailing mount which will not change regardless of just how much the scope is moved about or jarring the rifle takes. These are the style of mounts you should have for a devoted scope system on a reach out and touch someone scouting or interdiction long gun that will hardly ever need to be altered or recalibrated. Blue 242 Loctite threadlocker can also be used to protect against the hex screws from backing out after they are mounted safely in place. An example of these rings are the 30mm style made by the Vortex Optics brand. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Optic Rings
These types of quick-release rifle scope mounts can be used to rapidly take off a scope and attach it to a different rifle. Numerous scopes can also be switched out if they all use a similar design mount. These types of mounts are handy for rifles which are carried a lot, to swap out the optic from the rifle for protecting the scope, or for optics which are used in between multiple rifles or are situationally focused.
Glass Tube Sealing and Gas Purging
Moisture inside your rifle glass can spoil a day of shooting and your pricey optic by inducing fogging and producing residue inside of the scope’s tube. A lot of optics protect against humidity from going into the optical tube with a system of sealing O-rings which are water resistant. Generally, these water-resistant scopes can be submerged within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be more than enough moisture avoidance for basic use rifles for hunting and sporting purposes, unless you anticipate taking your rifle on boats and are concerned about the optic still performing if it goes overboard and you can still find the gun.
Rifle Scope Gas Purging
Another component of preventing the buildup of wetness within the rifle optic’s tube is filling the tube with a gas like nitrogen. Because this area is currently taken up by the gas, the optic is less impacted by temperature level shifts and pressure differences from the outside environment which may potentially permit water vapor to seep in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.